Using my master SSD as USB storage

Solution
The "case" that the OP linked is indeed a usb external enclosure that supports 2.5" ssd devices.

It is not clear why the ssd is not being detected.
Possibly, the external device is not sound.
You could buy a usb to sata adapter cable like this:
https://www.amazon.es/StarTech-USB3S2SAT3CB-Adaptador-SATA-negro/dp/B00HJZJI84/ref=sr_1_2?s=computers&ie=UTF8&qid=1518189719&sr=1-2&keywords=usb+sata+adapter+cable

Some sata hard drives require more power than a usb port can supply.
If you have two adjacent usb ports available, you can buy a adapter like this with a separate power and data usb connection...
The "case" that the OP linked is indeed a usb external enclosure that supports 2.5" ssd devices.

It is not clear why the ssd is not being detected.
Possibly, the external device is not sound.
You could buy a usb to sata adapter cable like this:
https://www.amazon.es/StarTech-USB3S2SAT3CB-Adaptador-SATA-negro/dp/B00HJZJI84/ref=sr_1_2?s=computers&ie=UTF8&qid=1518189719&sr=1-2&keywords=usb+sata+adapter+cable

Some sata hard drives require more power than a usb port can supply.
If you have two adjacent usb ports available, you can buy a adapter like this with a separate power and data usb connection.

https://www.amazon.es/EkoBuy-ekb10150-Adaptador-conversor-Compatible/dp/B01EQ7PNZY/ref=sr_1_5?s=computers&ie=UTF8&qid=1518189719&sr=1-5&keywords=usb+sata+adapter+cable
 
Solution